Home / 18,204.60-25,109.41-12,151.79

Finding the Fourth Proportional to 18,204.60, 25,109.41 and 12,151.79

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Solution

The fourth proportional to 18,204.60, 25,109.41 and 12,151.79 is: 16,760.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,204.60 : 25,109.41 = 12,151.79 : x
  2. Step 2: Convert to fraction form
    18,204.60/25,109.41 = 12,151.79/x
  3. Step 3: Cross multiply
    18,204.60x = 25,109.41 × 12,151.79
  4. Step 4: Simplify right side
    18,204.60x = 305,124,309.74
  5. Step 5: Solve for x
    x = 305,124,309.74/18,204.60
  6. Step 6: Final answer
    x = 16,760.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.